JPWO2020013015A1 - 可変速発電電動装置 - Google Patents
可変速発電電動装置 Download PDFInfo
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/483—Converters with outputs that each can have more than two voltages levels
- H02M7/4835—Converters with outputs that each can have more than two voltages levels comprising two or more cells, each including a switchable capacitor, the capacitors having a nominal charge voltage which corresponds to a given fraction of the input voltage, and the capacitors being selectively connected in series to determine the instantaneous output voltage
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F30/00—Fixed transformers not covered by group H01F19/00
- H01F30/06—Fixed transformers not covered by group H01F19/00 characterised by the structure
- H01F30/12—Two-phase, three-phase or polyphase transformers
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0003—Details of control, feedback or regulation circuits
- H02M1/0025—Arrangements for modifying reference values, feedback values or error values in the control loop of a converter
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0048—Circuits or arrangements for reducing losses
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/493—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode the static converters being arranged for operation in parallel
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
- H02M7/539—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters with automatic control of output wave form or frequency
- H02M7/5395—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters with automatic control of output wave form or frequency by pulse-width modulation
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
- H02P1/16—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters
- H02P1/46—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual synchronous motor
- H02P1/50—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual synchronous motor by changing over from asynchronous to synchronous operation
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
- H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
- H02P27/08—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters with pulse width modulation
- H02P27/14—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters with pulse width modulation with three or more levels of voltage
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0043—Converters switched with a phase shift, i.e. interleaved
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
- H02M5/40—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc
- H02M5/42—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters
- H02M5/44—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac
- H02M5/453—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal
- H02M5/458—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M5/4585—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only having a rectifier with controlled elements
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P2103/00—Controlling arrangements characterised by the type of generator
- H02P2103/10—Controlling arrangements characterised by the type of generator of the asynchronous type
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Eletrric Generators (AREA)
- Control Of Ac Motors In General (AREA)
- Inverter Devices (AREA)
- Rectifiers (AREA)
Abstract
Description
バイパス運転から変換器運転への切替指令により、時刻t1でバイパス遮断器CB2を開路すると時刻t2で非同期状態になり、時刻t3で遮断器CB1を閉路、時刻t4でGDB状態となり変換器運転を開始する。時刻t1から時刻t4までが無通電期間となる。
第1の手段は、特許文献9と特許文献10に開示された方法、可変速周波数電源の交流端子に限流要素ACL1を、直流電圧源の交流端子に限流要素ACL2を設けることで転流電流を抑制することができる。
バイパス運転から変換器運転への切替は、可変周波数電源の運転開始(GDB)で転流期間が開始、切替時の発電機電流IGを電流指令IG0に保持することで転流電流ITがIGに近づき、負荷開閉器LSの電流をほぼ0に絞った上で負荷開閉器LSを開路し、変換器運転を開始する。これによりバイパス回路の開閉に遮断器を使わなくとも済む。
図1は、本発明の実施形態を示す回路図である。
数式1は、複素表示のカゴ型誘導機の基本式である。
VRP*=+VR*+(1/2)×VDC
VRN*=−VR*+(1/2)×VDC
となる。
501は電圧指令発生器で、同期検出器125からの電圧上げ指令90R、電圧下げ指令90Lを入力し、前回値出力器513Aが出力する値に積算した結果を電圧指令VG*として出力する。
以下、バイパス運転から変換器運転への切り替え方法を示す。
最初にバイパス運転時の状態を図6の上段から順に説明する。
102 系統遮断器
103 主要変圧器
104A、104B 直流電源装置
105、105A、105B、105UP、105VP、105WP、105UN、105VN、105WN アーム変換器
106 負荷開閉器
107 カゴ型誘導機
114 バイパススイッチ用負荷開閉器
115 過電流保護用遮断器
116 初充電用変圧器
117、119、120 初充電用遮断器
118 限流抵抗器
121 可変速制御装置
122 計器用変流器
123、126A、126B 計器用変圧器
124 ベクトル演算装置
125 同期検出器
128 変換器制御装置
129 直流電流変成器
130 回転位相検出器
201 単位変換器
202 限流リアクトル
301、302 スイッチング素子
303 コンデンサ
304 光通信ケーブル
305 光・電気変換素子
306 シリアル・パラレル変換回路
307 ゲートドライバ
308 直流電圧変成器
309 アナログ・ディジタル変換器
310 パラレル・シリアル変換回路
311 電気・光変換素子
402A、402B 移動平均演算器
403A、403B d−q変換器
404A、404B 交流電流調整器
405A、405B 直流電流調整器
406A、406B 逆d−q変換器
407A、407B 直流電圧指令補正演算器
408A、408B PWM演算器
409A、409B、409C、411A、411B、411C、413、503A、503B、503C、503D 指令切替器
410A、410B、410C、513A、513D 前回値出力器
412、505 割り算器
414 NOT回路
415A、415B ゲート出力阻止回路
416 変換器制御切替器
501 電圧指令発生器
502A、502B、506 一定利得
504 励磁電流指令発生器
507 速度演算器
508 速度指令発生器
509 有効電力調整器
510 直流電圧指令発生器
511 積分器
512 可変速制御切替器
Claims (3)
- 電圧源特性のエネルギー貯蔵要素を介して任意の電圧を出力可能な2端子の単位変換器であって、このk個(kは1以上の自然数)の単位変換器と1個の限流リアクトルと1個の直流電流変成器とを直列接続した2端子のアーム変換器であって、この6個のアーム変換器を3相全波ブリッジ接続して直流側2端子と交流側3端子を設けたユニット変換器であって、このm個(mは1以上の自然数)のユニット変換器を直流側2端子と交流側3端子で並列接続した可変周波数電力変換器と、この可変周波数電力変換器の直流側2端子と背後接続した自励式電圧型変換器からなる直流電圧装置と、この直流電圧装置の交流3端子を交流系統に接続し、前記可変周波数電力変換器の交流3端子と3相カゴ型誘導機の交流3端子を接続し、前記直流電流変成器からの電流値が変換器電流指令値と一致するように前記単位変換器を制御する変換器電流調整器とからなる可変速発電電動装置において、
前記直流電圧装置の交流3端子と前記交流系統の間に第1の3相分岐回路を設け、前記可変周波数電力変換器の前記交流3端子と前記3相カゴ型誘導機の交流3端子間に第2の3相分岐回路を設け、この第1の3相分岐回路と第2の3相分岐回路の間にバイパス回路用の第1の負荷開閉器を設け、前記3相カゴ型誘導機の3相交流端子と前記第2の3相分岐回路の間に計器用変流器を設け、この計器用変流器の電流値を用いて前記可変周波数電力変換器への変換器電流指令値を出力する電力調整器とを設け、
前記可変周波数電力変換器で前記3相カゴ型誘導機を駆動発電する変換器モードから前記第1の負荷開閉器を閉路して前記3相カゴ型誘導機を駆動発電するバイパスモードに切替える時は前記第1の負荷開閉器を開路から閉路に切替え、続いて前記単位変換器へのゲート指令を停止する第1のモード切替装置と、前記バイパスモードから変換器モードに切替える時は、切替え時の前記計器用変流器の電流値を保持し、この電流値から前記変換器電流調整器の電流指令値を演算出力し、続いて前記単位変換器へのゲート指令を開始し、続いて前記第1の負荷開閉器を開路操作する第2のモード切替装置とを設けたことを特徴とする可変速発電電動装置。 - 第2の3相分岐回路と第1の負荷開閉器の間に交流遮断器を設け、計器用変流器で過電流を検出して前記交流遮断器を開路することを特徴とする請求項1に記載の可変速発電電動装置。
- 第2の3相分岐回路と前記可変周波数電力変換器の間に第2の負荷開閉器を設け、変換器モードからバイパスモードに切替える時は単位変換器へのゲート指令を阻止し、続いて前記第2の負荷開閉器を開路する装置を第1のモード切替装置に設け、バイパスモードから変換器モードに切替える時は前記第2の負荷開閉器を閉路し、続いて切替え時の前記計器用変流器の電流値を保持し、この電流値から前記変換器電流調整器の電流指令値を演算出力し、続いて前記単位変換器へのゲート指令を開始し、続いて前記第1の負荷開閉器を開路操作する第2のモード切替装置とを設けたことを特徴とする請求項1または2に記載の可変速発電電動装置。
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PCT/JP2019/026187 WO2020013015A1 (ja) | 2018-07-09 | 2019-07-01 | 可変速発電電動装置 |
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2019
- 2019-07-01 WO PCT/JP2019/026187 patent/WO2020013015A1/ja unknown
- 2019-07-01 US US17/253,079 patent/US20210118611A1/en not_active Abandoned
- 2019-07-01 JP JP2020530124A patent/JPWO2020013015A1/ja active Pending
- 2019-07-01 EP EP19834005.1A patent/EP3823158A4/en active Pending
- 2019-07-01 CN CN201980045681.4A patent/CN112385136A/zh not_active Withdrawn
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JP6243083B2 (ja) * | 2015-02-25 | 2017-12-06 | 日立三菱水力株式会社 | 可変速発電電動装置および可変速発電電動システム |
JP2016185006A (ja) * | 2015-03-26 | 2016-10-20 | 株式会社明電舎 | 水力発電システムにおける切換装置 |
Also Published As
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WO2020013015A1 (ja) | 2020-01-16 |
EP3823158A4 (en) | 2022-03-30 |
CN112385136A (zh) | 2021-02-19 |
US20210118611A1 (en) | 2021-04-22 |
EP3823158A1 (en) | 2021-05-19 |
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